Aledmys Diaz
Aledmys Diaz
28-Year-Old ShortstopSS
Houston Astros
10-Day IL
Injury Hamstring
Est. Return 7/22/2019
2019 Fantasy Outlook
Following an offseason trade to the Blue Jays, Diaz set a career high in homers in 2018. He missed some time with an ankle injury early on but still went on to clear 450 plate appearances as Toronto dealt with a slew of injuries around the infield. After walking in 8.9% of his plate appearances and batting .300 as a rookie in 2016, he hasn't cleared 5.1 or .263, respectively, in the years since. Diaz has decent power but the lack of speed on the basepaths makes him rather unexciting in most fantasy setups. In November, Toronto traded the 28-year-old to the Astros, who dealt with injuries to Jose Altuve (knee) and Carlos Correa (back) last season. Both are expected to be healthy for spring training. Unless one of their timetables looks bleak come March, Diaz should only garner interest in deep leagues where one can justifiably draft a team's backups. If you're expecting him to be the new Marwin Gonzalez, you're expecting a bit too much. Read Past Outlooks
RANKSFrom Preseason
#576
ADP
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$Signed a four-year, $8 million contract with the Cardinals in March of 2014. Traded to the Blue Jays in December of 2017. Traded to the Astros in November of 2018.
Kicks of rehab
SSHouston Astros
Hamstring
July 16, 2019
Diaz (hamstring) went 1-for-4 with a run scored for Triple-A Round Rock on Monday.
ANALYSIS
Diaz played seven innings at second base in the first game of his rehab assignment, which is expected to last between four and seven games. Given that he's already had a setback, the Astros want to give him time in the minors to play multiple positions and test the hamstring. The biggest test Monday was scoring from second base on a double.
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Batting Stats
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
1
2
9
2
2
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
2
1
4
3
1
Left/Right Batting Splits
Since 2017
 
 
+6%
OPS vs RHP
2019
 
 
+9%
OPS vs LHP
2018
 
 
+9%
OPS vs RHP
2017
 
 
+16%
OPS vs RHP
OPS PA R HR RBI SB AVG OBP SLG
Since 2017vs Left .705 212 24 7 18 2 .233 .308 .397
Since 2017vs Right .749 650 79 23 79 5 .274 .298 .451
2019vs Left .882 36 8 2 7 0 .258 .333 .548
2019vs Right .808 73 9 3 15 0 .299 .315 .493
2018vs Left .706 114 13 5 11 0 .223 .298 .408
2018vs Right .772 338 42 13 44 3 .276 .305 .467
2017vs Left .602 62 3 0 0 2 .236 .311 .291
2017vs Right .700 239 28 7 20 2 .264 .285 .416
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Home/Away Batting Splits
Since 2017
 
 
+2%
OPS on Road
2019
 
 
+12%
OPS at Home
2018
 
 
+7%
OPS at Home
2017
 
 
+22%
OPS on Road
OPS PA R HR RBI SB AVG OBP SLG
Since 2017Home .733 447 52 14 48 3 .271 .300 .432
Since 2017Away .745 415 51 16 49 4 .257 .301 .444
2019Home .874 59 10 2 13 0 .333 .356 .519
2019Away .780 50 7 3 9 0 .227 .280 .500
2018Home .781 221 24 7 25 1 .285 .317 .464
2018Away .732 231 31 11 30 2 .242 .290 .442
2017Home .622 167 18 5 10 2 .231 .259 .363
2017Away .757 134 13 2 10 2 .294 .328 .429
More Splits View More Split Stats
Stat Review
How does Aledmys Diaz compare to other hitters?
This section compares his stats with all batting seasons from the previous three seasons (minimum 400 plate appearances)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity and Barrels/PA % are benchmarked against this season's data (min 200 PA) and Hard Hit Rate is benchmarked against last season's data (min 400 PA). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • BB/K
    Walk to strikeout ratio
  • BB Rate
    The percentage of plate appearances resulting in a walk.
  • K Rate
    The percentage of plate appearances resulting in a strikeout.
  • BABIP
    Batting average on balls in play. Measures how many of a batter’s balls in play go for hits.
  • ISO
    Isolated Power. Slugging percentage minus batting average. A computation used to measure a batter's raw power.
  • AVG
    Batting average. Hits divided by at bats.
  • OBP
    On Base Percentage. A measure of how often a batters reaches base. Roughly equal to number of times on base divided by plate appearances.
  • SLG
    Slugging Percentage. A measure of the batting productivity of a hitter. It is calculated as total bases divided by at bats.
  • OPS
    On base plus slugging. THe sum of a batter's on-base percentage and slugging percentage.
  • wOBA
    Weighted on-base average. Measures a player's overall offensive contributions per plate appearance. wOBA combines all the different aspects of hitting into one metric, weighting each of them in proportion to their actual run value.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Hard Hit Rate
    A measure of contact quality from Sports Info Solutions. This stat explains what percentage of batted balls were hit hard vs. medium or soft.
  • Barrels/PA
    The percentage of plate appearances where a batter had a batted ball classified as a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
BB/K
0.54
 
BB Rate
6.4%
 
K Rate
11.9%
 
BABIP
.274
 
ISO
.224
 
AVG
.286
 
OBP
.321
 
SLG
.510
 
OPS
.831
 
wOBA
.353
 
Exit Velocity
89.0 mph
 
Hard Hit Rate
33.7%
 
Barrels/PA
6.7%
 
Advanced Batting Stats
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Additional Stats
Games By Position
Defensive Stats
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Stats Vs Upcoming Pitchers
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Astros Depth Chart
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Recent RotoWire Articles Featuring Aledmys Diaz
AL FAAB Factor: Waiver Pickups of the Week
2 days ago
Erik Siegrist sifts through a pitching-rich waiver wire in the American League and notes a number of players getting ready to return from the IL, including Rangers outfielder Hunter Pence.
Yahoo DFS Baseball: Monday Picks
43 days ago
Mike Barner checks out Monday's slate, recommending Seattle's Mitch Haniger in the series opener with visiting Houston.
AL FAAB Factor: Waiver Pickups of the Week
44 days ago
Erik Siegrist reviews this week's unusual mix in an AL free-agent pool that's short on starting pitching options but long on hot veteran hitters, including the streaky Jackie Bradley Jr.
Fantasy Baseball Injury Report: Hamstring Strains Plague Astros
50 days ago
Four key Astros players, including Jose Altuve, have missed time this year with hamstring strains of varying degrees.
FanDuel MLB: Sunday Breakdown
51 days ago
Even though Chris Archer ranks as one of the game's top pitchers, Sasha Yodashkin points out he's been hit hard since returning from injury and faces a lethal Dodgers' lineup today.
Past Fantasy Outlooks
2018
2017
2016
2015
2014
2013
Diaz enjoyed a breakout 2016 campaign with the Cardinals (133 wRC+ in 460 plate appearances) and was seemingly entrenched as the club's everyday shortstop heading in the 2017 season. Unfortunately, Diaz struggled to find his footing in the early going and was ultimately demoted to Triple-A Memphis in late June after slashing just .260/.293/.396 over the season's first three months. The shortstop's walk rate was cut in half -- from 8.9 percent in 2016 to 4.3 percent -- and he watched his power numbers plummet as well. Diaz's hard-hit rate fell eight percentage points in his second big-league season and his ISO dropped from .210 to .133. He continued to struggle at Triple-A (77 wRC+ in 187 plate appearances) while Paul DeJong took full advantage of his opportunity as the team's starting shortstop. The Cards shipped Diaz out to Toronto in the offseason, which is a big positive for Diaz given the injury histories of the two middle-infielders in front of him (Troy Tulowitzki and Devon Travis).
It's a shame that Diaz missed over a month courtesy of a fractured thumb, as St. Louis' under-the-radar rookie was in the midst of a phenomenal debut season. Despite dealing with the thumb injury, he still finished the year with an outstanding .300/.369/.510 line to go with 17 home runs and 65 RBI. Unfortunately, his defensive display was subpar and led to a .961 fielding percentage and 2.7 WAR. Diaz is fully expected to keep the title of starting shortstop, and with better health, should blow past his total of 111 games from a year ago. Prospective owners will want to be aware of the inherent risk that follows Diaz; due to him entering the league with little pedigree, the danger that he regresses during his sophomore season is more prevalent than with more proven prospects. However, if he continues to produce at a rate close to that from 2016, Diaz should finish inside the top 15 at the position.
The 25-year-old middle infielder had a breakout campaign in 2015, slashing .264/.324/.421 with 10 homers and six steals in 102 games at Double-A, following that up with some ridiculous numbers in a brief stop at Triple-A and in the Arizona Fall League. Realistically he is more batting average than anything else, and the power and speed totals would likely both be in the single digits over a full season in the big leagues. He will start the year at Triple-A, but if Ruben Tejada struggles while Jhonny Peralta is sidelined in the first half, Diaz could be the next man up.
Diaz was signed last year after defecting from Cuba where he hit .308/.401/.444 across five seasons in Cuba's Serie Nacional. He battled injuries for much of the season, which was no surprise since he had not played any organized baseball for over a year after defecting. Diaz still managed to put up some fairly impressive numbers for Double-A Springfield posting a .291/.311/.453 line. He will probably spend the majority of 2015 in Triple-A and at age 24 is still young enough that he holds some promise. Right now he doesn't project to be much more than a marginal MLB player if he can make it that far, and with Jhonny Peralta coming off a very good season in 2014 it's unlikely the Cardinals will need Diaz to contribute in St. Louis any time soon.
Diaz was a shortstop with a well-rounded skill set in Cuba's professional league, and could quickly be in the majors after signing. That event will be delayed; he was barred from signing with an MLB team until Feb. 19, 2014 for presenting a false date of birth when he applied to become a free agent after defecting. Diaz hit .315/.404/.500 with 12 home runs in 270 at-bats during the 2011-12 season before he defected, according to CBS Sports. It's not clear if his glove is strong enough to stick at shortstop, so he may need to move to second base.
Diaz is a Cuban defector who played for Cuba in the 2010 Pan-American games. He's seen as nearly ready for the majors, but it's not clear how his bat will translate to MLB play.
More Fantasy News
To require 4-to-7 MiLB games
SSHouston Astros
Hamstring
July 15, 2019
Diaz (hamstring) is expected to need between 4-to-7 games during his rehab assignment before being activated from the 10-day injured list, Chandler Rome of the Houston Chronicle reports.
ANALYSIS
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Beginning rehab stint Monday
SSHouston Astros
Hamstring
July 11, 2019
Diaz (hamstring) will start a rehab assignment Monday, Hunter Atkins of the Houston Chronicle reports.
ANALYSIS
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Takes on-field BP
SSHouston Astros
Hamstring
June 28, 2019
Diaz (hamstring) took batting practice on the field Friday, Chandler Rome of the Houston Chronicle reports.
ANALYSIS
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Running the field
SSHouston Astros
Hamstring
June 27, 2019
Diaz (hamstring) ran in the field for a fifth straight day Wednesday, Chandler Rome of the Houston Chronicle reports.
ANALYSIS
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Out through All-Star break
SSHouston Astros
Hamstring
June 20, 2019
Manager AJ Hinch said he doesn't think Diaz (hamstring) will "factor into the major-league team" before the All-Star break, Chandler Rome of the Houston Chronicle reports.
ANALYSIS
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